Changes

{{Night Sky

{{Night Sky

| image          =Catseye-big.jpg

| image          =Catseye-big.jpg

| designation    =[[NGC]] 6543

| designation    =[[NGC]] 6543<br/>IC 4677

| rightascension  =17^h 58^m 33.423^s<ref name=constellation-guide>[http://www.constellation-guide.com/cats-eye-nebula-ngc-6543/ Cat's eye nebula - NGC 6543] from constellation-guide.com</ref>

| rightascension  =17^h 58^m 33.423^s<ref name=constellation-guide>[http://www.constellation-guide.com/cats-eye-nebula-ngc-6543/ Cat's eye nebula - NGC 6543] from constellation-guide.com</ref>

| declination    =+66° 37′ 59.52″<ref name=constellation-guide/>

| declination    =+66° 37′ 59.52″<ref name=constellation-guide/>

| parallax        =17.00±8.00 mas/yr<ref name=simbad/>

| parallax        =17.00±8.00 mas/yr<ref name=simbad/>

}}

}}

The '''Cat's eye nebula''' (NGC 6543) is a well known [[planetary nebula]] in the [[constellation]] of [[Draco (constellation)|Draco]].<ref name=constellation-guide/> It is one of the most structurally complex [[nebulae]] and perhaps the most spectacular. Discovered in 1786, the nebula comprises a small but striking core surrounded by a vast, though much fainter, envelope of gas. E.E. Bernard classified the brightest knot in the nebula in 1900. It is classified in the Index Catalogues as IC 4677.

The '''Cat's eye nebula''' (NGC 6543) is a well known [[planetary nebula]] in the [[constellation]] of [[Draco (constellation)|Draco]].<ref name=constellation-guide/> It is one of the most structurally complex [[nebulae]] and perhaps the most spectacular. Discovered in 1786, the nebula comprises a small but striking core surrounded by a vast, though much fainter, envelope of gas. E.E. Bernard classified the brightest knot in the nebula in 1900. It is classified in the Index Catalogues as IC 4677 and is also sometimes referred to as either teh Sunflower nebula or the Snail nebula.<ref name=constellation-guide/>

==History==

==History==